Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: lead leaching

Sortuj według:

Ogranicz wyniki do:

Behavior of copper and lead during mineralurgical and hydrometallurgical processing of flash smelting slag

Gargul Krzysztof, Boryczko Bożena, Bukowska Andżelika, Hołda Adam, Małecki Stanisław, Tora Barbara

Archives of Civil and Mechanical Engineering

2021

Vol. 21, no. 1

435--447

There are only a few smelters processing copper concentrates directly into blister copper. Despite the many advantages of this process, a serious challenge of this technology is the need to process the resulting flash smelting slag. It contains 12–15% copper and 2.5–4% lead. In this form, it cannot be considered as waste material and, therefore, a high-temperature reduction process is carried out. This decopperization process is energy- and time-consuming. The use of mineralurgical and hydrometallurgical processes, selective enrichment of the appropriate slag fractions in copper and lead, followed by its hydrometallurgical processing and recovery of Cu and Pb could be an interesting supplement to the methods used so far. The article presents results of research on the possibility of separation of useful components from copper slag using the original method of sieve analysis, gravitational enrichment and magnetic separation. Preliminary results of tests were made on a laboratory scale. Then, selective leaching of copper and lead from flash smelting slag was carried out, obtaining very promising results.

Eksperymentalna charakterystyka procesu ługowania Pb(ll) z odpadowych szkieł CRT w roztworach kwasu azotowego(V)

Strzałkowska A., Gajda B., Siwka J.

Rudy i Metale Nieżelazne

2012

R. 57, nr 7

463-468

W artykule przedstawiono wyniki eksperymentalnych badań laboratoryjnych dotyczące wpływu różnych parametrów fizyko-chemicznych na ługowanie Pb(ll) z odpadowych szkieł ołowiowych w roztworach kwasu azotowego(V). Badanie dotyczyło szkieł pochodzących z odpadowych lamp katodowych zużytych monitorów CRT.

The paper presents the results of experimental laboratory studies concerning the influence of different physico-chemical parameters on the leaching of Pb(ll) from lead waste glass in solutions of nitric acid(V). The research focused on waste glass from cathode ray tubes of used CRT monitors. Alm of this study was to determine the parameters of an effective process for the Pb(ll) leaching from waste CRT glass with solutions of nitric acid(V). The effect on the process of following physical and chemical factors such as: concentration of reagent, particle size, stirring intensity, the ratio of solid to liquid phase (solid/liquid), temperature and leaching time was examined. Analysis of the results of Pb(ll) leaching from waste CRT glass in solutions of nitric acid(V) allowed to determine the optimal conditions for achieving the greatest grade of Pb(ll) leaching. The results obtained thus confirm the feasibility of Pb(ll) from waste CRT glass into an aqueous solution by hydrometallurgical process.